CVE-2025-27497 Information

Description

OpenDJ is an LDAPv3 compliant directory service. OpenDJ prior to 4.9.3 contains a denial-of-service (DoS) vulnerability that causes the server to become unresponsive to all LDAP requests without crashing or restarting. This issue occurs when an alias loop exists in the LDAP database. If an ldapsearch request is executed with alias dereferencing set to lways\ on this alias entry the server stops responding to all future requests. Fortunately the server can be restarted without data corruption. This vulnerability is fixed in 4.9.3.

Reference

https://github.com/OpenIdentityPlatform/OpenDJ/commit/08aee4724608e4a32baa3c7d7499ec913a275aaf https://github.com/OpenIdentityPlatform/OpenDJ/security/advisories/GHSA-93qr-h8pr-4593